Gearing.



PXI-5mn AUG. 4, 1908.

A. E. NEWTON.'

GEARING. APPLICAHQN Yum JULY 1902.

2 SHEETS-SHESTNNW WE Tresses.

f. fwxwy PATBNTED AUG. 4, 190s."

vNo. 856,103.

A. E. NEWTON.

GEARING.

PPLIGATION rILnn JULY 1.1903,

2 SHEETS-*SHEET 2,

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' UNrTED sriirnsfrnririvr orricrig" ALBERT E. NEWTON, OF WORCESTER, MASSACHUSETTS.

Grimme.

To all whom i! may concern: V

Be it known that I, ALBERT E. NEWTON, a citizen of the United States, residing at W'orcester, in the county of' 'Yorcestcr and State of Massachusetts, haveinvented a new and useful Gearing, of which the following is a specification.

` The object of this invention is to improve the construction of drillin(r machines espec ially upright drilling madhines the invention especially relating to a construction b which the gearing used for driving and fee ing the drill spindle can be conveniently ai'- ranged and accurately and economically' manufactured. Y

Referring to the accompanying two sheets of drawings forming part of this application for atent, Figure 1 is a side elevation of an upright drilling machine' with a preferred embodiment of my invention applied thereto. Fig. 2 is a plan view illustrating the centers of the gearing between the drill spindle and feeding mechanism, and Fig. 3 is a scctional vieW takeny on thc Fig. 2.

Referring to the drawings, and in detail, A designates the framing; B and'B tight and planes 3-3 of loose pulleys; C the driving cone pulley, and

D the driven cone pulley. A belt is arra Oed between the cone r leys C and D and y this construction w iich is a usual oneJ power is applied to t e inachine. The cone pulley D is loosely mounted on a horizontal shaft 10-.loosely journaled in brackets at the top of the frame Work. Turning with said cone ulley D is a pinion: 11 which has clutch teet on its face. A sliding clutch12 is keyed o'n said shaft 10. A shaft 13 is journaled in a bearing in the framing below the 10 and carries a gear 14 of a size proper to niesh with the pinion 11 and a pinion 15 of a size pro er to mesh with a gear lt secured on said s aft. A handle 17 is pivoted to main framing and has two arms, one engaging a groove on the slidinfJr teeth on meShWith the gear 16.

clutch 12 and the other a groove on the hr.

of the gear 14- By this construction, power can be taken directly through the shaft 10 b locking the sliding clutch into the clutc i inion 11; or can be taken dcuvn through t e shaft 13, 'which constitutes a back gear shaft, by sliding the clutch 12 out of mesh with the pinion 11, the gear 14 to mesh with the pinion 11 and the pinion 15 to This operation or the opposite one tore-mesh the clutch and Specification o! Letters Patent.

Application filed July 7, 1903. Serial No. 164,570.

Patented Aug. 41908.

l disconnect the back .Gearing is done'by asingle movement of thezhandle 17.

rack 22, engaging which is a inion mounted on the end 4of s shaft contro ed by the-handles 23. A worni-shaft is journaled in the drill head E and carries a yvorm 24 Awhich clutch 26 is arranged onthe face of said Worm-wheel 25. A hand-wheel 27 is sebevel 'gear 28 is loosel `other end of the worin-s a is provided so that said bevel gear 2S can be connected with, or disconnected from, the worin shaf t. ,The bevel gear 28 is drivenby feedrodl.

The foregoing mechanism comprises a.

a plied directl) or through back gearing, in w ich the drill spindle can be moved quickly u or down b v means of the, handles 23, in wxhic'h the drill s iindle can be moved u or down accurately by means of the hand-w eel 2T, or in which drill spindle can be fed by power through the bevel pinion 30, bevel gear 2S, clutch 29 worm 24, and the'fivorniwheel 25 transmitting power through the friction clutch 36 to the pinion meshing with the rack 22.

of the parts of a drilling machine of an improved st'vle of manufact-ure. In making this drilling machine, it is necessary that some direct, sini )le form of change fearing shall be provided to turn. the ,feed rod 31 at various speeds for different feeds. Difficulty has been encountered in providing a change which can be. economicall manufactured and quickly put in place. o overcome this meshes with a worm-wheel 25. A friction ournaled on th' ftj and a clutch 29 .a bevel pinion 30 secured on the end of a' drilling machine in which the power can be gearing which shall serve these functions,

A bevel pinion 18 is mounted o n the end of I and said table which is mounted on the column of the 1 The quill 21 is provided with the usual cured on ,the end of theworm-shaft. A

The foregoing mechanism constitutes Sonie tric lnib and the gear J3.

5 gear I9 and below its bearing is secured a gear 3'. from which viower is taken to actuate the feed rod 31. 'l' ie change speed gearing fer" taking power from this gear to the feedI rod is constructed as follows: 33 designates a bracket which is provided with twointegrally formed hubs 34 and 35. inside of the hub Si is titled a bushing h6. A key is inserted in this` bushing and the saine is bored out to tit the feed rod 31 which has a key way cut Four gears 37, 3S. 3) and 40 are secured on said bushing 36. Said bushing 36 is held in place by means of suitable collars 4l. Joiirualed in the other hub of the bracket 33 is ahollow shaft 42 loosely fitted ou which are four gears 4 3, 44, 45 and 46 meshing with the gears 37, 3S, 3U and t0 pre` viously referred to. This system is proportioned to get the desired adjustment of feed. The gears 43 to 4G have key- 'ays cut in their hubs. Sliding in said shaft-12 is a shaft 4T. fitted in which is a spring-pressed pivotcd key 48, which extends out through a slot cut in the hollow shaft 42 to engage t-hc keywirs cut in any one of the geais 43 to 46. Pins are arranged in said slot in said hollow' shaft, so that said key will properly pass from one gearto the next. Said shaft 47 is provided with a handle or button 49 by which the same can be actuated. By this construction, hy sliding the shaft 47 up or down, power can be taken through any one loof the series of the four intermcshing gears.

\\ `Secured on the end of the hollow shaft 42 is a gear 50. rlfhe upper end of the huh 35 is tiirncd ott' concentricaily with the shaft 42 so as to leave a collar 51. Fitted on 'the said concentric hub 5'. thus formed isa swinging bmcket 53. A collar 5-1 is usually novided on the hollow shaft 4. between suiii concen- A shaft is imirnalcd in a bearing :'i formed at the end of the swingingr bracket- 53 and is provided with a collar :3T to keep the saine in place. gear 5S is secured to the end of said shaft 55 and is iucshed with the gear 5() secured on the end ofthe hollow shaft. Another gear 5') is secured on the end of the said shaft or to said gear 5N. This gear 5t) is considerably iargcr than the gear 5S and is designed to sh `with the gear 32 o'n the hub of the drivin; heyel gear lf).

This construction can be readily assembled and put together on the bench. When i dcsiredto apply this change `speed gear- A to the drill the bracket- 33 is secured in rilae on the drill traine so that the feed rod l will properly line with the bushing 36, "Tiien the bracket .-'il is turned on the concentric hub 512 until the gear 5) properly nicshes with the gear 32. The hub of the swinging bracket which tits on the concentric-hub 52 is preferably split and a clamping screw (i0 is provided so that said s'winginir bracket can be held in adjustable position. An ear is n also provided on said swinging bracket 53 so 70 that a pin 6l can he.'additionally.*used to lock the swinging bracket 53 in its adjustable position on the bracket 33 if desired. Thus this gearing can be quickly andv accurately applied in place on the drill frame and can he manufactured and assembled in large quantities and quickly put in place onthe inachines as they are set up.

By the construction described, fo'urchanges of feed can be. obtained, but it is obvious that 30 this number can be increased or decrease as desired.

I am aware that other changes maybe made. in the construction by a skilled niecliani and that features of the invention 35 may be ap lied to other mechanism than drilling mac iines and tn other types of drill. ing machines than the one shown in the drawings without departing from the scope of my invention as described in the claims.

Having thus fully described my invention what I claim and desire to secure by Letters Patent is: i i Y ,1. In an upright' drilling machine, a bracket., a change speed gearing carried above said bracket, an adjustable 'bracket mounted on the tiist bracket, and a gear carried by the secoiiil'biacket below the first, bracket for driving said change speed gearing arranged so that the saine can be adjusted or swung without. destroying the mesh of they gearing, wherebysaid l acketcan be seeiircd to thedrilhfraine, and the adjust-able bracket set to mesh the gear to the gear which is to drive the sanie. l 2. 1n an upright drilling machine, the combination of a. bracket having two iiit-e-- grally formed hubs, 'a feed rod supported by one of said hubs, a shaftt supported solel)r by the other of said hubs, a change speed gear- 11o ing arranged between said shafts and coniprising a gear on the end of the shaft, a swinging bracket concentrically mounted on one of said hubs, gearing carried by Said` lswinging bracketI and meshing with the gear on the shaft, and means for locking thisi bracket in adjusted position.

3. In an upright| drill, the combination of a bracket having two integrally formed hubs,

a bushing in one of said hubs, a feed rodslidable through said bushing. and arranged t0 l turn therewith, a series of gears arranged between said hubs, and connected with t-lie. bushing, a swinging bracket n iounted on .one

of said hubs` means carried by said swinging combination of`:i\[eedrod, a bracket-having .130

two lirios, a bushing journaled in on of said l hubs ino whirl: the feed rod. slides7 l series l of gears secured to said bushing, n 'hollow shaft :lournnled in the other hub, a series of gums inermeshing with the first sries looseli mounted on snitl hollow shaft lqr count-'yung :my 'one ot' said gears to saidhl low slt. :i swingingr bracket mounted consi ('entrimllvon snitl hul), n gear mounted on the end of said hollow shaft'. n shaft jour nnleli in the end of snitl swinging bracket, :1 geur mounted thereon meshing with the gear on the eml of tho hollow shaft nml :mother gear mounted thereon for Connecting to the gearwhich is to actu-ate 'the change sped gearing.

5. ln an u )right drilling machine, the combination oi n brac-liet having two hubs, a bushing journalerl in one of said hubs and 4adapted to receive n feed rod, a series of v ALBERT* E. NEWTON.

Witnesses:

Loris W. SOUTHGATE, MARY E. REGAN. 1 

